RE: Extra 6.5 freezes/white screen while VBA connection

You do realize that your Extra terminal emulator is interfacing you asynchronously to your mainframe computer. When you send off a command, your program has to wait for the mainframe to respond before continuing. It could be less than a second or more than a minute. No one knows.

You would never decide before you left your house to drive to work, that you would stop at every intersection, wait for 5 seconds and then blindly proceed through the intersection. No! You wait for feedback from the asynchronous system of reality to determine when it is safe to proceed.

Likewise, you need to wait for a feedback from the mainframe when it is ready. I used .WaitForCursor at the screen rest coordinates in a loop, something like...